Dipterocarpus fagineus grows as a medium-sized tree up to tall, with a trunk diameter of up to . The bark is greyish brown. The fruits are roundish to ellipsoid, up to long. The specific epithet fagineus is from the Latin meaning 'like a beech'. Its habitat is mixed dipterocarp forest on hills. Dipterocarpus fagineus is native to Sumatra, Peninsular Malaysia and Borneo.